Bug 1652070 (CVE-2018-19218)

Summary:	CVE-2018-19218 libsass: illegal address access at Sass::Parser::parse_css_variable_value_token
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aurelien, fmuellner
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:43:04 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1652071, 1652072
Bug Blocks:	1652077

Description Laura Pardo 2018-11-21 14:17:24 UTC

A flaw was found in LibSaas 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack. 


References:
https://bugzilla.redhat.com/show_bug.cgi?id=1643758

Comment 1 Laura Pardo 2018-11-21 14:17:59 UTC

Created libsass tracking bugs for this issue:

Affects: epel-7 [bug 1652072]
Affects: fedora-all [bug 1652071]

Comment 2 Stefan Cornelius 2019-03-20 17:44:51 UTC

Possibly introduced via https://github.com/sass/libsass/commit/efd97dae376de50b3e6ed724337c4f274a21491d